Abstract. Cloud computing is the prevalent change occurring in the area of data innovation. At present a significant concern in cloud appropriation is towards its security and protection. In the progression of distributed computing the application part of virtualization in the long run builds, the extent of the security and protection steadily extends. The clients profit from cloud innovation for two main considerations that are Data protection and security. Cloud security conveys all the administrations dependent on clients need-firewalls, URL channels, sandboxes, SSL assessment, antivirus and remaining in a unified platform. It is an airtight security without the expense and multifaceted nature of apparatuses which shuts the security holes made by BYOD and portability. Despite the fact that distributed computing gives security there are some backlogs. The cloud security is hazards due to absence of information excess and consistency. Here, it represents the calculation of security by utilizing SRP convention which is a solid confirmation protocol (one-time guess per association endeavour) that oppose all well-known dynamic and detached assault over the system.